
There are three principal means of acquiring knowledge. . . observation of nature, reflection, and experimentation. Observation collects facts reflection combines them experimentation verifies the result of that combination.
quote by Denis Diderot

Submitted by Lucian Velea
Vote! | Copy!
Related quotes

There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination.
quote by Denis Diderot

Submitted by Lucian Velea
Vote! | Copy!

There are three principal means of acquiring knowledge. . . observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination.
quote by Denis Diderot

Submitted by Lucian Velea
Vote! | Copy!

Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.
quote by Denis Diderot

Submitted by Lucian Velea
Vote! | Copy!

Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined and for this reason, creative geniuses are not common.
quote by Denis Diderot

Submitted by Lucian Velea
Vote! | Copy!

Observation is a passive science, experimentation an active science.
quote by Claude Bernard

Submitted by Lucian Velea
Vote! | Copy!

For the truth of the conclusions of physical science, observation is the supreme Court of Appeal. It does not follow that every item which we confidently accept as physical knowledge has actually been certified by the Court our confidence is that it would be certified by the Court if it were submitted. But it does follow that every item of physical knowledge is of a form which might be submitted to the Court. It must be such that we can specify (although it may be impracticable to carry out) an observational procedure which would decide whether it is true or not. Clearly a statement cannot be tested by observation unless it is an assertion about the results of observation. Every item of physical knowledge must therefore be an assertion of what has been or would be the result of carrying out a specified observational procedure.
quote by Arthur Eddington

Submitted by Lucian Velea
Vote! | Copy!

For the truth of the conclusions of physical science, observation is the supreme Court of Appeal. It does not follow that every item which we confidently accept as physical knowledge has actually been certified by the Court; our confidence is that it would be certified by the Court if it were submitted. But it does follow that every item of physical knowledge is of a form which might be submitted to the Court. It must be such that we can specify (although it may be impracticable to carry out) an observational procedure which would decide whether it is true or not. Clearly a statement cannot be tested by observation unless it is an assertion about the results of observation. Every item of physical knowledge must therefore be an assertion of what has been or would be the result of carrying out a specified observational procedure.
Arthur Eddington in The Philosophy of Physical Science

Submitted by Lucian Velea
Vote! | Copy!
The combination of experience and experimentation will ultimately yield a personal sound.
quote by Mark White

Submitted by Lucian Velea
Vote! | Copy!
Overnight Observation
(j. farrar/t. snow)
Looks like Im the only one here
Even the nurse is gone
But I guess I should wait cause when she left, she said
The doctor wont be long
So make yourself at home
His office is down the hall
Why do I feel uneasy?
I know he must be good
Got credentials all over the wall
I hear a voice behind me say
What seems to be the trouble, my dear?
Wont you be kind enough to step over here
It might be fever
It might be flu
To isolate it, Ill have to hold you
Overnight (observation)
Overnight (observation)
In my opinion
All we can do to isolate it
Ill hold you overnight (observation)
Overnight (observation)
Please dont think me ungrateful
But holding me overnight
Seems a little extreme
Do you always serve martinis
And turn the lights down low
Doctor, do your colleagues know?
Although you say its good for me
I really dont feel like dancing now
Somebodys waiting
And Im double-parked anyhow
It might be fever
It might be flu
To isolate it, Ill have to hold you
Overnight (observation)
Overnight (observation)
In my opinion
All we can do to isolate it
Ill hold you overnight (observation)
Overnight (observation)
Now, I may look stupid
But Ill tell you what, Ive been around a long time
And I thought I had heard everything
I tell you, they keep coming up with them
I just couldnt believe my ears when he said:
Kick off your shoes, relax my dear
Slip into something comfortable
Two seconds flat, Im out the door and down the hall
It might be fever
It might be flu
To isolate it, Ill have to hold you
Overnight (observation)
Overnight (observation)
In my opinion
All we can do to isolate it
Ill hold you overnight (observation)
Overnight (observation)
song performed by by Olivia Newton-John

Submitted by Lucian Velea
Vote! | Copy!
A battle lost or won is easily described, understood, and appreciated, but the moral growth of a great nation requires reflection, as well as observation, to appreciate it.
quote by Frederick Douglass

Submitted by Lucian Velea
Vote! | Copy!
Observation
You got to twist with the music to expose your body! !
And like a moving star performing in a church room;
But the observation of this muse is yours in the making,
However, it is always right to know the truth.
Observation, votes, rob, robs, brave, rave, save, sot, rate, to, bet;
But, you have to think twice if it is not in!
For, the churches are now turned into business centres.
Observation, bat, rat, star, rats, on, no, ion, ions, ton, tons, not;
And like a moving star performing ina church room!
But, the observation of this muse is now common in this country.
Observation, note, notes, be, so, or, at, as, an, near, sear, bear;
However, it ia always right to know the truth!
For, not all that glitters around us is gold.
Observation, bare, neat, seat, set, net, ten, nets, art, arts, raves;
With much work at hand to do for a living! !
Because, whatever you have around is always from hand to mouth.
Observation, bets, bent, rent, bents, rents, sent, vat, ran, sit;
But, you got to twist to the music to expose your nakedness! !
And like the muse of war in the land of trouble;
However, it is right to know the truth.
poem by Edward Kofi Louis

Submitted by Poetry Lover
Vote! | Copy!
Of the laws of nature on which the condition of man depends, that which is attended with the greatest number of consequences is the necessity of labor for obtaining the means of subsistence, as well as the means of the greatest part of our pleasures. This is no doubt the primary cause of government; for if nature had produced spontaneously all the objects which we desire, and in sufficient abundance for the desires of all, there would have been no source of dispute or of injury among men, nor would any man have possessed the means of ever acquiring authority over another. The results are exceedingly different when nature produces the objects of desire not in sufficient abundance for all. The source of dispute is then exhaustless, and every man has the means of acquiring authority over others in proportion to the quantity of those objects which he is able to possess. In this case the end to be obtained through government as the means, is to make that distribution of the scanty materials of happiness which would insure the greatest sum of it in the members of the community taken altogether, preventing every individual or combination of individuals from interfering with that distribution or making any man to have less than his share.
quote by James Mil

Submitted by Veronica Serbanoiu
Vote! | Copy!
God’s Reflection
God sees His own reflection
As if on the water
Prophet Mohammad the mercy of God
Is the best reflection of God’s character!
Prophet Mary the best girl of the world
Is the best reflection of God’s beauty and purity!
Prophet Jesus the soul of our Lord
Is the best reflection of God’s peace!
The Holy Koran the difference maker
Between the good and the evil
Is the best reflection of God’s favor!
poem by Asif Andalib

Submitted by Poetry Lover
Vote! | Copy!
Music is at once the product of feeling and knowledge, for it requires from its disciples, composers and performers alike, not only talent and enthusiasm, but also that knowledge and perception which are the result of protracted study and reflection.
quote by Alban Berg

Submitted by Lucian Velea
Vote! | Copy!
The first, or theoretic branch, that which explains the nature, production, and distribution of wealth, will be found to rest on a very few general propositions, which are the result of observation, or consciousness.
quote by Nassau William Senior

Submitted by Lucian Velea
Vote! | Copy!
Observation II
Observation, Orion, sat, sea, vet, vets, Ben, boat, boats, boot;
With your works at hand to be seen by others in this town!
But, try to wake up from this negative world to know the truth.
Observation, boots, soot, sort, soon, vain, train, rain, strain, stain;
With twisted words in the churches to blindfold my people! !
However, it is right to know the truth.
Observation, brain, brains, trains, rest, nest, best, bean, beans;
Down to the river side in this village,
But, somebody dropped in the bomb to kill many! !
Observation, ear, era, are, tear, tears, tea, eat, ate, bait, sate;
Words of love and works of peace!
Bringing in the truth to satisfy the hearts of many;
For, Rome was not built in a day.
Observation, seta, vent, it, is, in, sin, tin, bin, bins, tins, bone;
Dancing with the tunes to expose your body! !
But, someone needs to tell you the truth about this muse.
Observation, bones, stone, tone, tones, one, roast, boast, vote;
Wherever and whatever with the muse of your songs! !
But, let this earth be filled with righteousness than evil.
poem by Edward Kofi Louis

Submitted by Poetry Lover
Vote! | Copy!

All our knowledge has its origins in our perceptions… In nature there is no effect without a cause… Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments… Science is the observation of things possible, whether present or past; prescience is the knowledge of things which may come to pass.
quote by Leonardo da Vinci

Submitted by Catalin Popescu
Vote! | Copy! | In Romanian
It Goes Unrecognized
It goes unrecognized,
And they despise it.
Yet it is their own reflection.
They do not like what they see at all.
But it is their own reflection.
They speak of ills and detriment.
Of evil doings and misdeeds sent.
They talk of maintaining standards...
With values meant.
But none of this means anything,
Since they can not see themselves at all...
Through any of their sentiments!
Every thing that is said,
They want to believe.
But what is in their heads...
Isn't the lives they lead!
It goes unrecognized,
And they despise it.
Contradictions like these,
Bleed!
It goes unrecognized,
And they despise it.
Yet it is their own reflection.
poem by Lawrence S. Pertillar

Submitted by Poetry Lover
Vote! | Copy!
Knowledge isn't restrained by the limits of Malthus. Information doesn’t need topsoil to grow in, only freedom. Given eager minds and experimentation, it feeds itself like a chain reaction.
quote by David Brin

Submitted by Veronica Serbanoiu
Vote! | Copy!
Surely it is time to examine into the meaning of words and the nature of things, and to arrive at simple facts, not received upon the dictum of learned authorities, but upon attentive personal observation of what is passing around us.
quote by Francis Wright

Submitted by Lucian Velea
Vote! | Copy!